An 18-year-old has tragically passed away after having a cardiac arrest during gym class.

Jordan Brister suffered a medical emergency on January 3, in the middle of the school day at Las Vegas' Amplus Academy, per TODAY.

The outlet detailed that he'd allegedly been found unresponsive in a bathroom following his regular Tuesday gym class, after having collapsed there 25 minutes earlier. Just five days later on January 8, the high school senior sadly passed away.

According to a GoFundMe started by his family, there is "no explanation as to why" he had the heart attack.

[[imagecaption|| Credit: GoFundMe.com]]

"Jordan Tyler Brister suddenly and unexpectedly suffered cardiac arrest while at school with no explanation as to why," the description read on the fundraiser.

"Jordan was a senior in high school who planned to join the military after graduating. Words cannot express what the Brister family is going through and there will never be enough answers as to why this has happened. He was an amazing kid who loved life to the fullest," it continued.

So far, the fundraiser has raised over $41,000 of the original $20,000 goal, and the funds will be used for funeral services and anything else the teen's family will need.

The school he attended wrote a statement sending their condolences to the family of the teen, writing: "It is with deep sadness and sympathy that we announce the passing of one of our Senior High School students, Jordan Brister. The Amplus community sends our love and condolences to the Brister family as well as to all of Jordan's family, friends, and acquaintances."

[[facebookwidget||https://www.facebook.com/AmplusAcademy/posts/590218653113031]]

NBC reported that staff members did their best to provide the young high schooler with "emergency medical attention" until paramedics finally arrived on the scene.

Brister's tragic passing came soon after another Vegas high school student - 16-year-old Ashari Hughes - collapsed and died after a flag football game, CBS reported. Just last week, 24-year-old NFL star Damar Hamlin also suffered a shock cardiac arrest on-field during his team's game against the Cincinnati Bengals.

As previously reported, the Buffalo Bills safety has made a full recovery since his tackle against Bengals' player Tee Higgins, and was finally discharged from Buffalo General Hospital on Wednesday (January 11).

Multiple medical experts have theorized that Hamlin's heart attack could have resulted from a condition known as commotio cordis, a phenomenon whereby sudden blunt trauma to the chest can cause the heart and blood flow to stop, often resulting in death.

Regarding Brister's death, however, the Clark County Coroner's Office has publicly stated that police officers are still investigating what could have triggered the cardiac arrest.

Featured image credit: Ben Schonewille / Alamy

18-year-old tragically dies after suffering cardiac arrest after gym class